Forza Horizon 5 multiplayer issue (account related)

When I join a friend the convoy just sits in a never ending loading, cannot join horizon life (when I click on the horizon life on the right bottom corner, a loading wheel appears for 1 second then nothing is happening) , when clicking on the friends/players I get a connection error, cannot participate in the horizon arcade (because I cannot see it on the map and cannot join horizon life) and also when I launch the game I get a notification that my graphic card driver is not up to date, even though it is. I don't have a network problem. I checked before this ticket, there is nothing wrong with my Xbox Networking. Also, this morning I discovered something. It is not a problem from my internet or a game bug. It's an account problem. Let me explain. This morning I made a new Microsoft account and bought the Xbox game pass, and switched accounts. All the multiplayer features were working just fine from the other account. After that I reinstalled the game from my main account in the standard version (until then I had the premium version installed) and the multiplayer still did not work. I can play with friends from my other account with game pass, but I can't play from my main account with premium edition purchased. I found some fixes online regarding DNS server, but none of these worked. I tried entering these commands in cmd in windows: Ipconfig/flushdns, Ipconfig/registerdns, Ipconfig/release, Ipconfig/renew, Netsh Winsock Reset , restarted the pc and it's still not working. I connected back to the new account, reinstalled the game from game pass and the multiplayer is working. So it is not a hardware problem or a network problem, it's something with my account.

If there is any fix that you can think of, please let me know.

Thank you!

:)